Claude Sonnet 5 vs Claude Sonnet 5.5
Prices checked
Claude Sonnet 5 and Claude Sonnet 5.5 split the 5 rounds this table counts: the maker's two prices, the cheapest price, the maker's blended price and context. The weighting you pick decides the rest.
AnthropicClaude Sonnet 5
1M context · tool calling · reads images
$16/M tokensAnthropic's own price · $1.80 per 1,000 pages
AnthropicClaude Sonnet 5.5
1M context · tool calling · reads images
$16/M tokensAnthropic's own price · $1.80 per 1,000 pages
Maker's price in (lower wins)
$2/M
$2/M
Maker's price out (lower wins)
$10/M
$10/M
Cheapest price (lower wins)
none below the maker
none below the maker
Maker's price, blended (lower wins)
$16/M
$16/M
Cost per 1,000 pages (lower wins)
$1.80
$1.80
Context
1M tokens
1M tokens
Open weights
no
no
Tool calling
yes
yes
Structured output
yes
yes
Reads images
yes
yes
Reasoning
yes
yes
Released
29 Jun 2026
28 Sept 2026
Providers selling it
44
25
Price we measure against
the maker's own
the maker's own
Trains on your prompts (no is better)
no provider to check
no provider to check
Providers selling both · 24
Amazon Bedrock$16 / $16- Anthropic$16 / $16
Azure AI Foundry$16 / $16
Azure Cognitive Services$16 / $16
FastRouter$16 / $16
GitHub Copilot$16 / $16
Google$16 / $16
Google Vertex AI$16 / $16
Claude Sonnet 5, then Claude Sonnet 5.5, per million tokens; the 8 cheapest of 24.
Go further
Add a third or fourth model, or change the weighting, in the tool.
What moved this week
Meganova · 25% dearer · $2 / $10 $1.60 / $8
Merge Gateway · 33% cheaper · $2 / $10 $3 / $15
Requesty · 9% cheaper · $2 / $10 $2.20 / $11
Cortecs · 0.7% cheaper · $2.25 / $11.23 $2.26 / $11.32
Opper · 10% dearer · $2.20 / $11 $2 / $10
Frequently asked
- Which is cheaper, Claude Sonnet 5 or Claude Sonnet 5.5?
- Neither: both run at $16 per million tokens, blended 3 in : 1 out, read on 29 Sept 2026.
- Where is each one cheapest?
- Claude Sonnet 5: nobody sells it below the maker's own price with a stated reason, so $16 is the number to beat. Claude Sonnet 5.5: nobody sells it below the maker's own price with a stated reason, so $16 is the number to beat.
- Can I buy both from one provider?
- Yes. 24 providers sell both: Amazon Bedrock, Anthropic, Azure AI Foundry, Azure Cognitive Services, FastRouter, GitHub Copilot, and more. The cheapest of them for the two together is Amazon Bedrock.
- Which holds more context?
- Both hold 1M tokens in one call.
Prices exclude tax, read 29 Sept 2026 from each provider's own catalog. They are per M tokens, blended 3 in : 1 out, and a page is 600 tokens in and 60 out. Bars are scaled to the larger value in each row.
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